/*
 * golden.h - Golden Ratio (φ)
 *
 *     1 + √5   A + B   A
 * φ = ------ = ----- = -
 *       2        A     B
 */

#define PHI 1.618033988749894902525738871190696955
#define SQRT5 2.236067977499789805051477742381393909

double          Phi = (1.0 + SQRT5) / 2.0;
